2 power suplies on one pc

[nenadilievski72]

i bought cheap psu spire with 420w, but i figured out it only has 15amps on the 12v rail. for me it is cheaper to get one more non-good psu but with 2 12v at 18amps. Xilence XP550 550w
so if this xilence psu is not good enough, one of them will be for gpu, and the other one for the rest of the system. posible or not? good or not?

 

[ElectrO_90]

You just short out 2 pins on the 24 pin adaptor which means its "on" then plug in the cables to the GPU.

This does mean that you cannot monitor the voltages on the external PSU

 

[nenadilievski72]

You just short out 2 pins on the 24 pin adaptor which means its "on" then plug in the cables to the GPU.

This does mean that you cannot monitor the voltages on the external PSU

sorry but i dont get you. i dont have so much knowledge in this area

 

[ElectrO_90]

https://www.youtube.com/watch?v=Ea1dcJ0QyAE
That shows you how to "power up" a PSU because PSUs only switch on when the ON button is pressed on your motherboard, so you need to short the pins out to make the PSU switch on
You can then connect the other leads to your GPU.

But since you are not really experienced with this, I would recommend buying a new PSU so you don't have all this cable and mess everywhere.

 

[nenadilievski72]

https://www.youtube.com/watch?v=Ea1dcJ0QyAE
That shows you how to "power up" a PSU because PSUs only switch on when the ON button is pressed on your motherboard, so you need to short the pins out to make the PSU switch on
You can then connect the other leads to your GPU.

But since you are not really experienced with this, I would recommend buying a new PSU so you don't have all this cable and mess everywhere.

aham, i get you. this xilence psu is not bad, but it has two 12v rails with 18amps. will it power pc that requires 28amps?

 

[ElectrO_90]

Take a photo of the SPECS of the PSU which should be on the side.
Then list exactly what your Computer is, cpu/gpu/mobo/ram etc

 

[DSzymborski]

Xilence has *some* good PSUs, made by Enhance and some Platinum Andysons. If this is one of their really old low-end 550s -- and that appears likely given that you seem to be getting this rather than the usual Corsair CX gray/Seasonic M12/S12 budget choices, it's a pretty bad PSU.

Just bite the bullet and get *one* good budget PSU. The annoyance of running two power supplies is hard to justify when you probably should be using neither of them. The worst of the 550W Xilence PSUs were made by Huizhou, which use the same platform for some atrocious Inter-Tech PSUs. Lots of Yang-Chun capacitors in those, a brand that you see frequently in the notorious Deer PSUs.

 

[USAFRet]

i bought cheap psu spire with 420w, but i figured out it only has 15amps on the 12v rail. for me it is cheaper to get one more non-good psu but with 2 12v at 18amps. Xilence XP550 550w
so if this xilence psu is not good enough, one of them will be for gpu, and the other one for the rest of the system. posible or not? good or not?

Question:
Will it still be "cheaper" when one of these two substandard PSU's blows up and kills some other part?

 

[nenadilievski72]

Take a photo of the SPECS of the PSU which should be on the side.
Then list exactly what your Computer is, cpu/gpu/mobo/ram etc

https://www.google.com/search?q=Xilence+XP550+550w&client=firefox-b-ab&source=lnms&tbm=isch&sa=X&ved=0ahUKEwjf2qqK7tfbAhVDJ1AKHe4FCA0Q_AUICigB&biw=1280&bih=910#imgrc=5GY9vyWi0fIsiM

i still haven't bought the psu but it is this one on the link or more powerfull than that, there is 80+ bronze verzion but i dont know if the psu i should buy is the weaker or the more powerfull version.

pc specs:
cpu: core2quad q9400
gpu: still haven't bought one, but if the psu is good enough gtx 560
mobo: g31m3 v2
ram: 2x2gb 800mhz ddr2
hdd: x2 7200rpm 250gb 2.5 inch hdd

 

[nenadilievski72]

i bought cheap psu spire with 420w, but i figured out it only has 15amps on the 12v rail. for me it is cheaper to get one more non-good psu but with 2 12v at 18amps. Xilence XP550 550w
so if this xilence psu is not good enough, one of them will be for gpu, and the other one for the rest of the system. posible or not? good or not?

Question:
Will it still be "cheaper" when one of these two substandard PSU's blows up and kills some other part?

why would it blow up when they will be on low usage, the card max wattage is 150w and the resto of the system is about the same.

 

[nenadilievski72]

Xilence has *some* good PSUs, made by Enhance and some Platinum Andysons. If this is one of their really old low-end 550s -- and that appears likely given that you seem to be getting this rather than the usual Corsair CX gray/Seasonic M12/S12 budget choices, it's a pretty bad PSU.

Just bite the bullet and get *one* good budget PSU. The annoyance of running two power supplies is hard to justify when you probably should be using neither of them.

they are something like 50$, my whole pc is worth that much.....

 

[USAFRet]

why would it blow up when they will be on low usage, the card max wattage is 150w and the resto of the system is about the same.

Bad power supplies have been known to blow at a power draw far below whatever fake number is printed on the side of the box.

 

[nenadilievski72]

why would it blow up when they will be on low usage, the card max wattage is 150w and the resto of the system is about the same.

Bad power supplies have been known to blow at a power draw far below whatever fake number is printed on the side of the box.

ok than.

 

[ElectrO_90]

I think you need to save and buy new

 

[nenadilievski72]

I think you need to save and buy new

mate im 14 y.o, saving 50$ will mean waiting for too long and spending all my money. then i will have to save something like 30$ for the gpu and 10$ for the case. almost 100$. buying that second psu will cost me less then 10$ and than gpu from 30$ and the case from 10$. 50$ vs 100$ means something like 5 months waiting. and still even if i wait that much psu from 50$ on gpu from 30$, how is that logical, no offense i dont want to offend anyone....

 

[USAFRet]

mate im 14 y.o, saving 50$ will mean waiting for too long and spending all my money. then i will have to save something like 30$ for the gpu and 10$ for the case. almost 100$. buying that second psu will cost me less then 10$ and than gpu from 30$ and the case from 10$. 50$ vs 100$ means something like 5 months waiting. and still even if i wait that much psu from 50$ on gpu from 30$, how is that logical, no offense i dont want to offend anyone....

Replacing parts that die from using 2 substandard [strike]GPU's[/strike] PSU's will cost much more.

Your age and your budget is irrelevant to us out here. We're just trying to recommend things that won't actually be worse than what you have, and are potentially dangerous to the point of a fire hazard.
Yes, sometimes non-crappy parts are not "cheap". But you get what you pay for.

If you lived in my house, you would not be allowed to plug that thing into the wall.

But...it's your money, your hardware.
Good luck to you.

 

[DSzymborski]

mate im 14 y.o, saving 50$ will mean waiting for too long and spending all my money. then i will have to save something like 30$ for the gpu and 10$ for the case. almost 100$. buying that second psu will cost me less then 10$ and than gpu from 30$ and the case from 10$. 50$ vs 100$ means something like 5 months waiting. and still even if i wait that much psu from 50$ on gpu from 30$, how is that logical, no offense i dont want to offend anyone....

Replacing parts that die from using 2 substandard GPU's will cost much more.

Your age and your budget is irrelevant to us out here. We're just trying to recommend things that won't actually be worse than what you have, and are potentially dangerous to the point of a fire hazard.
Yes, sometimes non-crappy parts are not "cheap". But you get what you pay for.

If you lived in my house, you would not be allowed to plug that thing into the wall.

But...it's your money, your hardware.
Good luck to you.

Yeah, what it comes down to, OP, is that whether you're 14, 40, or 114, whether you have $1 or $100,000,000, the basic PSU situation is the same. Nobody's saying you need to get a 1500W Titanium-rated PSU, but even something mediocre and basic, like an EVGA BT 450W, will at least power your stuff and not fry anything or stat fires, and that's a pretty good thing to invest $30 on.

 

[nenadilievski72]

mate im 14 y.o, saving 50$ will mean waiting for too long and spending all my money. then i will have to save something like 30$ for the gpu and 10$ for the case. almost 100$. buying that second psu will cost me less then 10$ and than gpu from 30$ and the case from 10$. 50$ vs 100$ means something like 5 months waiting. and still even if i wait that much psu from 50$ on gpu from 30$, how is that logical, no offense i dont want to offend anyone....

Replacing parts that die from using 2 substandard [strike]GPU's[/strike] PSU's will cost much more.

Your age and your budget is irrelevant to us out here. We're just trying to recommend things that won't actually be worse than what you have, and are potentially dangerous to the point of a fire hazard.
Yes, sometimes non-crappy parts are not "cheap". But you get what you pay for.

If you lived in my house, you would not be allowed to plug that thing into the wall.

But...it's your money, your hardware.
Good luck to you.

if the budget is irelevant, find me psu from 200$ and just make me buy it becouse its the best. 50$ psu on 50$ system is seriously crazy man... no offence

 

[nenadilievski72]

mate im 14 y.o, saving 50$ will mean waiting for too long and spending all my money. then i will have to save something like 30$ for the gpu and 10$ for the case. almost 100$. buying that second psu will cost me less then 10$ and than gpu from 30$ and the case from 10$. 50$ vs 100$ means something like 5 months waiting. and still even if i wait that much psu from 50$ on gpu from 30$, how is that logical, no offense i dont want to offend anyone....

Replacing parts that die from using 2 substandard PSU's will cost much more.

Your age and your budget is irrelevant to us out here. We're just trying to recommend things that won't actually be worse than what you have, and are potentially dangerous to the point of a fire hazard.
Yes, sometimes non-crappy parts are not "cheap". But you get what you pay for.

If you lived in my house, you would not be allowed to plug that thing into the wall.

But...it's your money, your hardware.
Good luck to you.

Yeah, what it comes down to, OP, is that whether you're 14, 40, or 114, whether you have $1 or $100,000,000, the basic PSU situation is the same. Nobody's saying you need to get a 1500W Titanium-rated PSU, but even something mediocre and basic, like an EVGA BT 450W, will at least power your stuff and not fry anything or stat fires, and that's a pretty good thing to invest $30 on.

here on tomshardware any psu that is not evga starts fire, in my country no one is using evga, cs series or something simlar, but no one lost their house or pc. btw that psu is 70$ here :/

 

[USAFRet]

here on tomshardware any psu that is not evga starts fire, in my country no one is using evga, cs series or something simlar, but no one lost their house or pc. btw that psu is 70$ here :/

That is absolutely incorrect. Quite the opposite, actually.

So what is available in your market? Under $50...
Please list them all.

 

[Rogue Leader]

MERGED QUESTION
Question from nenadilievski72 : "two 12v 18amps, will it be enough for system that requies 25amps to run?"

two 12v 18amps, will it be enough for system that requies 25amps to run?

Make and model of psu? Many low quality units can’t produce their claimed Amps.

Make and model of psu? Many low quality units can’t produce their claimed Amps.

Xilence XP550 550w. im planing to get gtx 560 and i have core2quad

MERGED QUESTION
Question from nenadilievski72 : "will Xilence XP550 550w be enough to power gtx 560?"

Xilence XP550 550w is the psu
cpu: core2quad
gpu: 560

That psu, assuming you have given the full model number, is very old; the only reference I can find is from 2011.

Xsilence have marketed some good PSU's over the years, I still run a similar age one, but the XP550 is not one of them; even back then, it was a low budget offering made by a no-name Chinese OEM.

That psu, assuming you have given the full model number, is very old; the only reference I can find is from 2011.

Xsilence have marketed some good PSU's over the years, I still run a similar age one, but the XP550 is not one of them; even back then, it was a low budget offering made by a no-name Chinese OEM.

so it wont be enough?

That psu, assuming you have given the full model number, is very old; the only reference I can find is from 2011.

Xsilence have marketed some good PSU's over the years, I still run a similar age one, but the XP550 is not one of them; even back then, it was a low budget offering made by a no-name Chinese OEM.

i know that it is not good psu, but i honestly dont have enough money for good one, will it run the system or at least the gpu itslef?

That psu, assuming you have given the full model number, is very old; the only reference I can find is from 2011.

Xsilence have marketed some good PSU's over the years, I still run a similar age one, but the XP550 is not one of them; even back then, it was a low budget offering made by a no-name Chinese OEM.

so it wont be enough?

Max power from a psu drops over time, as the components age; it MIGHT still provide enough, but it doesnt have modern overload protection, so if it fails, it might fry everything.

That psu, assuming you have given the full model number, is very old; the only reference I can find is from 2011.

Xsilence have marketed some good PSU's over the years, I still run a similar age one, but the XP550 is not one of them; even back then, it was a low budget offering made by a no-name Chinese OEM.

so it wont be enough?

Max power from a psu drops over time, as the components age; it MIGHT still provide enough, but it doesnt have modern overload protection, so if it fails, it might fry everything.

ok thx for that, i guess it will be fine if i use one more psu as i plan. my question was it has 18amps on 1 and 18amps on 2nd 12v rail, the gpu itself requies 16.9amps. is it better to use the other psu i have (420w 15amps on 12v) to power the rest of the system, and the psu with 18amps on 2 12v to be for gpu, or to use the better psu for whole system?

 

[Rogue Leader]

MERGED QUESTION
Question from nenadilievski72 : "is this psu enough?"

https://outervision.com/b/nWQ1rB my setup

http://reklama5.mk/AdDetails?ad=2403871 my psu

will it work?

That PSU is junk. It only has 15A on the +12V rail.

That PSU is junk. It only has 15A on the +12V rail.

so it won't work?

That PSU is junk. It only has 15A on the +12V rail.

so it won't work?

It might work right up until it craps its pants.

 

[Rogue Leader]

MERGED QUESTION
Question from nenadilievski72 : "wo 12v rails at 18amps, powering system that reqies 28amps"

will psu that has two 12V rails (one 18amps and second 17amps) power system that requires 26amps? xilence xp550 550w is the psu, i know its trash but i honestly can't buy new one. so please dont spam me to get evga, thx.



my second option is to run 2 power suplies on 1 system, becouse i have another psu (spire 420w), so i can use 1 psu for gpu and 1 for everything else?

will psu that has two 12V rails (one 18amps and second 17amps) power system that requires 26amps? xilence xp550 550w is the psu, i know its trash but i honestly can't buy new one. so please dont spam me to get evga, thx.



my second option is to run 2 power suplies on 1 system, becouse i have another psu (spire 420w), so i can use 1 psu for gpu and 1 for everything else?

Whats your system specs? That PSU should be fine (other than being trash). Do not combine a bad psu with a worse one.

will psu that has two 12V rails (one 18amps and second 17amps) power system that requires 26amps? xilence xp550 550w is the psu, i know its trash but i honestly can't buy new one. so please dont spam me to get evga, thx.



my second option is to run 2 power suplies on 1 system, becouse i have another psu (spire 420w), so i can use 1 psu for gpu and 1 for everything else?

Whats your system specs? That PSU should be fine (other than being trash). Do not combine a bad psu with a worse one.

core 2 quad q9400, gtx 560, g31m3 v2, ddr2 800mhz. what whould you do? combine two psu or use the more powerfull one only?
i tough that combining is fine becouse both power suplies will be at 150w load max...

The backstory on this request:

http://www.tomshardware.com/answers/id-3726164/power-suplies.html

Others:
http://www.tomshardware.com/answers/id-3726163/12v-18amps-system-requies-25amps-run.html
http://www.tomshardware.com/answers/id-3725961/psu.html

will psu that has two 12V rails (one 18amps and second 17amps) power system that requires 26amps? xilence xp550 550w is the psu, i know its trash but i honestly can't buy new one. so please dont spam me to get evga, thx.



my second option is to run 2 power suplies on 1 system, becouse i have another psu (spire 420w), so i can use 1 psu for gpu and 1 for everything else?

Asking the same question again won't change the answers from your earlier threads.

will psu that has two 12V rails (one 18amps and second 17amps) power system that requires 26amps? xilence xp550 550w is the psu, i know its trash but i honestly can't buy new one. so please dont spam me to get evga, thx.



my second option is to run 2 power suplies on 1 system, becouse i have another psu (spire 420w), so i can use 1 psu for gpu and 1 for everything else?

Whats your system specs? That PSU should be fine (other than being trash). Do not combine a bad psu with a worse one.

core 2 quad q9400, gtx 560, g31m3 v2, ddr2 800mhz. what whould you do? combine two psu or use the more powerfull one only?
i tough that combining is fine becouse both power suplies will be at 150w load max...

Running a poor quality PSU can be dangerous at any load. Running 2 poor quality PSUs will increase the risk of a system killing failure. As bad as that xilence is that spire is even worse. Save your money till you can get a better PSU and pray your current units doesn't kill anything before then.

 

[Rogue Leader]

I merged your threads. STOP making new threads.

Use the Xilence. Its a piece of garbage, but better than trying to use TWO pieces of garbage.

Other than buying a new not garbage PSU, this is the only answer to this question, so again stop flooding the forum with it.

 

[nenadilievski72]

I merged your threads. STOP making new threads.

Use the Xilence. Its a piece of garbage, but better than trying to use TWO pieces of garbage.

Other than buying a new not garbage PSU, this is the only answer to this question, so again stop flooding the forum with it.

Thermaltake Litepower LP-450AH2NF is this psu ok?